Adjustable switch-rod.



No. 755,471. Y PATENTBD MAR. 22, 1904.

H. ELLIOT, JR,

ADJUSTABLE SWITCH ROD.

APPLICATION FILED' JAN. 9, 1904.

N0 MODEL.

FIG:

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ATTEST INvEN-roR i L P' t v HENRY ELLlo-r JR.A

No. P1755,471.

Patented March Q2, 1904.

HENRY ELLIOT, JR., OF ST. LOUIS, MISSOURI.

lADJUSTABLE SWITCH-ROD..

SPECIFICATION forming part of Letters Patent No. 755,471, dated March22, 1904.

Application led January 9, 1904.

To all whom it may concern.

Be it known that I, HENRY ELLIOT, J r., a

citizen of the United States, residing in the city of St. Louis, in .theState ci' Missouri, have invented certain new and useful Improvements inAdjustable Switch-Rods, of which the following is a full, clear, andexact description, 'reference being had to the accompanying drawings,forming part of this speciiication. My invention relates to that classof adjustable switch-rods that employs an eccentric for adjusting thelength oi the rod so that the switch-points may at all times be held upsecurely against the track-rails.

The object of my invention is to provide a device of this characterwhich is inexpensive, which can be easily and quickly adjusted, andwhich is not likely to become disarranged by the rough usage to whichsuch things are subjected. v

Figure I is a top or plan view showing my improved adjustableswitch-rod. Fig. II is a section taken on line II II, Fig. I. Fig. IIIis an enlarged detail vertical section showing one of the eccentrics andits associated parts. Fig. IV is a perspective view of one or' theeccentrics. Fig. V isa perspective view of one of the brackets.

Referring to the drawings, 1 represents track-rails, and 2switch-points.

3 is a switch rod or bar passing, as usual, beneath the track-rails andto which the switchpoints are connected. This connection between theswitch-points and the rod or bar is effected by means oi' brackets 4,bolted at their outer ends to the webs of the switch-points and restingat their inner ends against the upper face of the switch-bar. The innerends of the brackets have circular openings 5, in which fit disks 6,having eccentrically-located non-circular peri'orations 7. These diskswill be hereinafter'referred to as eccentrica inasmuch as they so act inoperation.

8 represents straps riveted to the bar 3 and which are formed tooverhang the inner ends of the brackets 4, as shown in the drawings, theinner ends of the brackets thus fitting between the straps and theswitch-bar.

9 represents bolts that pass through the Serial No. 188,393. (No model.)

straps 8, eccentries 6, and the switch-bar 3, the non-circular heads ofthese bolts fitting in correspondingly shaped enlargements of the holesin the straps 8. The portions 10 of the bolts that fit in theperforations 11 of the straps 8 are circular, and the portions 12 of thebolts that t in the perforations 13 of the switch-bar are also circular.The central portions 14 of the bolts are non-circular and correspond inshape to the openings 7, formed in the eccentrics, and I prefer to makethese non-circular portions 14 somewhat longer than the thickness of theeccentries and to form enlargements in the upper portions of the holes13 to receive the lower ends of these portions 14. The lower ends oi'the bolts 9 are provided with nuts 15 and keys 16. When it becomesnecessary to adjust the switchpoints so that they will fit snugly upagainst the heads of the track-rails, the nuts 15 and keys 16 areremoved and the bolts raised until their heads are elevated above theenlargements of the holes 11. A wrench being then applied to the bolts,the latter are turned, which will cause the .eccentrics 6 to be turnedin the holes 5, and this will effect an inward or outward movement ofthe brackets 4 and cause the switch-points to be thrown farther apart ornearer together, as may be required. Vhen the eccentrics have thus beenadjusted, the bolts are lowered again until their noncircular heads itin the enlargements of the holes 11, and the bolts, together with theeccentrics, will thus be held to their adjustment. The nuts 15 and keys16 are now replaced in position, and the brackets will be iirmly andsecurely held to the switch-bar. By making the non-circular portions 14of the bolts somewhat longer than the thickness of the eccentries theseparts oi' the bolts are not likely to be moved upwardly out of the holes7 when the bolts are raised to make an adjustment.

The device is inexpensive, is not likely to get out of order, and can bereadily and effectively worked by any person of ordinary intelligencewithout requiring special instructions or exercising special care orattention to the work.

I claim as my invention- 1. In an adjustable switch-rod, the combi- IOOnation of a bar, brackets secured to the sWitchl points and resting uponthe bar, eccentrics fitting in holes formed in the brackets, strapssecured to the switch-bar and which overhang said brackets, bolts havingnon-circular portions itting in non-circular holes formed in theeccentrics, and means for holding the bolts from turning afteradjustment, substantially as set forth.

2. In an adjustable switch-rod, the combination of abar, bracketssecured to the switchpoints and resting upon the switch-bar, eccentricsiitting in holes formed in the brackets and which are provided With noncircular openings, straps secured to the switch-bar and which overhangsaid brackets, and bolts having non-circular portions fitting in thenon. circular eccentrically-located holes in said eccentrics; saidstraps being provided with noncircular enlargements of the bolt-openingsto receive the non-circular heads of said bolts, substantially as setforth.

HENRY ELLIOT, JR. In presence of- E. S. KNIGHT, NELLIE V. ALEXANDER.

